[DevTools] Move getCompletions to native

third_party/WebKit/Source/devtools/front_end/sdk/RemoteObject.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/RemoteObject.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/RemoteObject.js b/third_party/WebKit/Source/devtools/front_end/sdk/RemoteObject.js
index bba2c6e5f6d1dfe3da730ee0fc25a806ba2bb48f..21a6b04554ea045d0140bebdc50784663908e8e2 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/RemoteObject.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/RemoteObject.js
@@ -259,6 +259,14 @@ WebInspector.RemoteObject.prototype = {
     },
 
     /**
+     * @return {!Promise<!Array<string>>}
+     */
+    getCompletionsPromise: function()

[pfeldman, 2016/05/03 18:07:25]

completionsPromise

+    {
+        throw "Not implemented";
+    },
+
+    /**
      * @return {!WebInspector.Target}
      */
     target: function()
@@ -883,6 +891,27 @@ WebInspector.RemoteObjectImpl.prototype = {
         this._runtimeAgent.callFunctionOn(this._objectId, functionDeclaration.toString(), args, true, true, false, undefined, mycallback);
     },
 
+    /**
+     * @override
+     * @return {!Promise<!Array<string>>}
+     */
+    getCompletionsPromise: function()
+    {
+        var callback;
+        var promise = new Promise(fulfill => callback = fulfill);
+        this._runtimeAgent.getCompletions(this._objectId, this.type, didGetCompletions);
+        return promise;
+
+        /**
+         * @param {?Protocol.Error} error
+         * @param {!Array<string>} completions
+         */
+        function didGetCompletions(error, completions)
+        {
+            callback(error ? [] : completions);
+        }
+    },
+
     release: function()
     {
         if (!this._objectId)